Cooling assembly and battery pack

Abstract

The utility model relates to a cooling assembly and a battery pack, and relates to the technical field of batteries, the cooling assembly comprises a cooling body, a first separator and a second separator, the cooling body is internally provided with a first exhaust channel and a plurality of cooling channels which extend along a first direction and are mutually independent; the first separator is arranged in the cooling body and used for separating the multiple cooling channels, the first separator is provided with a second exhaust channel penetrating in the second direction, and the second exhaust channel communicates with the first exhaust channel and the first external environment; the second separator is arranged in the cooling body, is connected with the first separator and the inner wall of the cooling body, and is used for separating the first exhaust channel and the plurality of cooling channels; an exhaust through hole is formed in one end, in the first direction, of the first exhaust channel so as to communicate with the second external environment. According to the cooling assembly and the battery pack, the space amount occupied by the cooling system and the exhaust system can be reduced, the number of battery modules in the battery box is increased, and the energy density of the battery pack is improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a cooling component and a battery pack. Background Art

[0002] In practical applications, if a thermal runaway occurs in a battery pack, a large amount of high-temperature gas will be generated, leading to safety accidents. To address this situation, in related technologies, usually two systems, namely a cooling system and an exhaust system, are provided in the battery pack. The cooling system is generally used to cool and dissipate heat from the battery modules, so that the operating temperature of the battery modules is maintained within a normal range. The exhaust system is used to discharge the high-temperature gas when a large amount of high-temperature gas is generated in the battery pack. In related technologies, the cooling system and the exhaust system are independently arranged, occupying a relatively large amount of space in the battery box, resulting in a reduction in the number of battery modules in the battery box and a decrease in the energy density of the battery pack. Summary of the Utility Model

[0003] To solve the above technical problems, embodiments of the present application provide a cooling component and a battery pack, which can reduce the space occupied by the cooling system and the exhaust system, increase the number of battery modules in the battery box, and improve the energy density of the battery pack.

[0004] In a first aspect, a cooling component is provided, including:

[0005] A cooling body, in which a first exhaust passage extending along a first direction and a plurality of cooling passages are provided independently of each other;

[0006] A first partition member, which is arranged in the cooling body and is used to partition the plurality of cooling passages. The first partition member is provided with a second exhaust passage penetrating along a second direction, and the second exhaust passage communicates with the first exhaust passage and a first external environment;

[0007] A second partition member, which is arranged in the cooling body. The second partition member connects the first partition member and the inner wall of the cooling body, and the second partition member is used to partition the first exhaust passage and the plurality of cooling passages;

[0008] One end of the first exhaust passage along the first direction is provided with an exhaust through-hole to communicate with a second external environment. The first direction is the extending direction of the cooling body, and the second direction is perpendicular to the first direction.

[0009] According to the first aspect of the present application, two second partition members are connected to one end of the first partition member along the second direction. The two second partition members are arranged at an angle at the end far from the first partition member and are connected to the inner top wall of the cooling body, so as to form the first exhaust passage through the two second partition members, the first partition member and the inner top wall of the cooling body.

[0010] According to the first aspect of the present application, the second separator is an elastic sheet structure.

[0011] According to the first aspect of the present application, the cooling assembly further includes:

[0012] A third partition is provided in the cooling body, the third partition connects the end of the first partition away from the second partition and the inner wall of the cooling body, and the third partition and the first partition are used to separate the multiple cooling channels and the first external environment.

[0013] According to the first aspect of the present application, the two third separators are arranged at an angle away from one end of the first separator and are connected to the inner wall of the cooling body, wherein the third separators are elastic sheet structures.

[0014] According to the first aspect of the present application, the first partition is provided with a plurality of second exhaust channels spaced apart along the first direction, and the plurality of second exhaust channels are all connected to the first exhaust channel.

[0015] According to the first aspect of the present application, a plurality of blocking blocks spaced apart along the first direction are provided at one end of the cooling body away from the first exhaust channel, and the blocking blocks are used to separate the first external environment into a plurality of subspaces, each of the subspaces corresponding to at least one second exhaust channel.

[0016] According to the first aspect of the present application, the cooling assembly further includes:

[0017] The current collector is provided with a limiting groove, and the end of the cooling body along the first direction is clamped in the limiting groove;

[0018] In which, the limiting groove is divided into a cooling cavity and an exhaust cavity, the cooling cavity and the cooling channel are correspondingly connected, the exhaust cavity and the first exhaust channel are correspondingly connected, and an air outlet is provided at one end of the collector away from the cooling body, and the air outlet, the exhaust cavity and the first exhaust channel are connected along the first direction.

[0019] In a second aspect, a battery pack is also provided, comprising:

[0020] Battery box;

[0021] A plurality of battery modules are arranged in the battery box;

[0022] Multiple cooling components as described in the previous embodiments are arranged in the battery box, and the cooling components are attached between any two adjacent groups of battery modules. The first external environment corresponds to the bottom wall of the battery box, and the second external environment corresponds to the side wall of the battery box.

[0023] According to the second aspect of the present application, a plurality of spacer sheets are provided at one end of the cooling body close to the bottom wall of the battery box, and the plurality of spacer sheets protrude from the side wall edges of the cooling body at intervals along the first direction;

[0024] A plurality of grooves are provided at intervals along the first direction on the bottom wall of the battery box, and the grooves are used to accommodate the spacer sheets to isolate adjacent two groups of battery modules.

[0025] The cooling assembly and the battery pack provided by the embodiments of the present application can cool and dissipate heat from the battery modules by flowing a cooling medium in the cooling flow channels. When high-temperature gas is generated due to the out-of-control of the battery modules, the high-temperature gas accumulated in the first external environment can be discharged through the second exhaust channel and the first exhaust channel, avoiding safety accidents. It can be seen that the cooling assembly and the battery pack can not only achieve the cooling function but also the exhaust function. Compared with the solution of independently arranging a cooling system and an exhaust system in the related art, the space occupied by the cooling system and the exhaust system can be effectively reduced, the number of battery modules in the battery box can be increased, and the energy density of the battery pack can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0027] Figure 1 It is a schematic structural diagram of a battery pack without a box cover provided by an exemplary embodiment of the present application.

[0028] Figure 2 It is an exploded schematic diagram of a battery pack provided by an exemplary embodiment of the present application.

[0029] Figure 3 It is a schematic structural diagram of a cooling assembly provided by an exemplary embodiment of the present application.

[0030] Figure 4 It is a schematic structural diagram of the cooling assembly without a current collector in a first perspective provided by an exemplary embodiment of the present application.

[0031] Figure 5 It is a schematic structural diagram of the cooling assembly without a current collector in a second perspective provided by an exemplary embodiment of the present application.

[0032] Figure 6 It is a schematic structural diagram of the cooling assembly without a current collector in a third perspective provided by an exemplary embodiment of the present application.

[0033] Figure 7 Schematic structural diagram of the current collector provided by an exemplary embodiment of the present application from a first perspective.

[0034] Figure 8 Schematic structural diagram of the current collector provided by an exemplary embodiment of the present application from a second perspective.

[0035] Reference numerals: 100 - cooling assembly; 110 - cooling body; 111 - first exhaust passage; 1111 - exhaust through-hole; 112 - cooling channel; 114 - current collector; 1141 - air outlet; 115 - limiting groove; 116 - heat-conducting body; 1151 - cooling cavity; 1152 - exhaust cavity; 120 - first partition; 121 - second exhaust passage; 130 - second partition; 140 - third partition; 150 - sub-space; 160 - plugging block; 170 - isolation sheet; 180 - buffer body; 190 - refractory coating; 200 - heat-insulating sheet; 300 - battery pack; 310 - battery box; 320 - battery module; 321 - first side; 322 - second side; 330 - box cover. Detailed implementation manners

[0036] Next, exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.

[0037] Figure 1 Schematic structural diagram of the battery pack provided by an exemplary embodiment of the present application after removing the box cover. Figure 2 Explosion schematic diagram of the battery pack provided by an exemplary embodiment of the present application. As Figure 1 and Figure 2 shown, the battery pack 300 provided by the embodiment of the present application may include a battery box 310, multiple groups of battery modules 320, and multiple cooling assemblies 100. Each group of battery modules 320 may include multiple battery cells. The multiple groups of battery modules 320 and the multiple cooling assemblies 100 are disposed in the battery box 310. A cooling assembly 100 is attached between any two adjacent groups of battery modules 320. In this way, the cooling assembly 100 can cool the two adjacent groups of battery modules 320, and can also discharge high-temperature gas when a large amount of high-temperature gas is generated in the battery module 320, which can simplify the structure and improve the energy density. The cooling assembly 100 will be introduced in detail later.

[0038] As Figure 1 and Figure 2 shown, the cooling assembly 100 is attached to the first side 321 of the battery module 320, that is, the large surface of the battery cell, which can improve the cooling efficiency of the battery module 320.

[0039] As Figure 2 shown, the battery pack 300 may further include a heat insulation sheet 200. The heat insulation sheet 200 is attached to the second side surface 322 of the battery module 320. The heat insulation sheet 200 can improve the heat insulation and heat preservation performance of the battery module 320 and reduce the heat dissipation of the battery module 320. The heat insulation sheet 200 is attached to the second side surface of each battery cell perpendicular to the first side surface 321 to ensure the heat insulation effect between the battery cells.

[0040] As Figure 2 shown, a buffer body 180 is attached between the inner side wall of the battery box 310 and the first side surface 321 of the battery module 320. On the one hand, during the process of assembling the battery module 320, the buffer body 180 can compensate for the assembly error, so that the battery module 320 and the inner side wall of the battery box 310 are in a compressed pre-tight state; on the second hand, during the process of the battery module 320 expanding during operation, the buffer body 180 can play a buffering role to avoid direct contact between the battery module 320 and the inner side wall of the battery box 310 and reduce the damage suffered by the battery module 320; on the third hand, the buffer body 180 has good heat insulation and heat preservation functions, can reduce the heat dissipation of the battery module 320, and improve the efficiency of the battery thermal management system.

[0041] In one embodiment, the buffer body 180 can be selected from foam, rubber pads, etc.

[0042] As Figure 2 shown, a refractory coating 190 is provided on the inner bottom wall of the battery box 310. In this way, when a high-temperature flame appears inside the battery box 310, the refractory coating 190 can prevent the high-temperature flame from impacting the inner bottom wall of the battery box 310 and avoid the problem of the inner bottom wall of the battery box 310 being burned through and melted.

[0043] In one embodiment, the thickness of the refractory coating 190 is H, and 500 μm ≤ H ≤ 1000 μm.

[0044] Figure 3 It is a schematic structural diagram of a cooling component provided by an exemplary embodiment of the present application. Figure 4 It is a schematic structural diagram of the cooling component provided by an exemplary embodiment of the present application from the first perspective after removing the current collector. Figure 5 It is a schematic structural diagram of the cooling component provided by an exemplary embodiment of the present application from the second perspective after removing the current collector. Figure 6 It is a schematic structural diagram of the cooling component provided by an exemplary embodiment of the present application from the third perspective after removing the current collector. As Figures 3 to 6 shown, the cooling component 100 provided by the embodiment of the present application may include a cooling body 110. A first direction ([ Figure 4 and Figure 5In the directions indicated by arrows A and B, a first exhaust passage 111 extending in the extending direction of the cooling body 110) and a plurality of cooling passages 112 are provided. The first exhaust passage 111 and the plurality of cooling passages 112 are independent of each other. The cooling passages 112 can be used for a cooling medium (including coolant, cold air, etc.) to flow through to cool the battery module 320. The first exhaust passage 111 can discharge high-temperature gas when the battery module 320 generates high-temperature gas.

[0045] It should be noted that the aforementioned "plurality of cooling passages 112" can be understood as two or more cooling passages 112.

[0046] As Figures 3 to 6 shown, the cooling assembly 100 may further include a first partition 120 and a second partition 130. The first partition 120 and the second partition 130 are disposed within the cooling body 110. The first partition 120 is used to partition the plurality of cooling passages 112. Combining Figure 4 , cooling passages 112 are formed on both sides of the first partition 120; the second partition 130 connects the first partition 120 and the inner wall of the cooling body 110. The second partition 130 is used to partition the first exhaust passage 111 and the plurality of cooling passages 112. Combining Figure 4 , a first exhaust passage 111 and a cooling passage 112 are respectively formed on both sides of the second partition 130. Therefore, the first partition 120 and the second partition 130 can make the first exhaust passage 111 and the plurality of cooling passages 112 independent of each other, avoiding the cooling medium in the cooling passages 112 from overflowing into the first exhaust passage 111 and affecting the exhaust operation of the first exhaust passage 111.

[0047] As Figures 4 to 6 shown, the first partition 120 is provided with a second exhaust passage 121 penetrating along the second direction ( Figure 4 and Figure 5 in the directions indicated by arrows C and D, perpendicular to the first direction). The second exhaust passage 121 communicates the first exhaust passage 111 with the first external environment. An exhaust through-hole 1111 is provided at one end of the first exhaust passage 111 along the first direction to communicate with the second external environment. It should be noted that when the cooling assembly 100 is assembled in the battery box 310, the first external environment corresponds to the bottom wall of the battery box 310, and the second external environment corresponds to the side wall of the battery box 310.

[0048] In practical applications, the explosion-proof valve of the battery module 320 corresponds to the bottom wall of the battery box 310. When the battery module 320 gets out of control and generates high-temperature gas, the high-temperature gas accumulates on the bottom wall of the battery box 310 and can flow along the second direction through the second exhaust passage 121, then enter the first exhaust passage 111, then flow along the first direction, and be discharged to the second external environment through the exhaust through-hole 1111 of the first exhaust passage 111, and then flow to the outside of the battery box 310. In this way, the high-temperature gas can be prevented from accumulating on the bottom wall of the battery box 310, avoiding safety accidents.

[0049] It should be understood that for the cooling component 100 provided in the embodiment of the present application, by flowing a cooling medium in the cooling flow path, it can cool and dissipate heat from the battery module 320. When the battery module 320 gets out of control and generates high-temperature gas, with the help of the second exhaust passage 121 and the first exhaust passage 111, the high-temperature gas accumulated on the bottom wall of the battery box 310 can be discharged, avoiding safety accidents. Thus, it can be seen that the cooling component 100 can not only achieve the cooling function but also the exhaust function. Compared with the solution of independently arranging a cooling system and an exhaust system in the related art, it can effectively reduce the space occupied by the cooling system and the exhaust system, increase the number of battery modules 320 in the battery box 310, and improve the energy density of the battery pack 300.

[0050] It should be noted that during the process of the high-temperature gas flowing from the second exhaust passage 121 to the first exhaust passage 111, the cooling medium in the cooling flow path can also cool down the high-temperature gas in the second exhaust passage 121, reducing the temperature of the discharged high-temperature gas and further reducing the probability of safety accidents.

[0051] As Figure 2 、 Figure 3 and Figure 4 shown, a plurality of spacer pieces 170 are provided at one end of the cooling body 110 close to the bottom wall of the battery box 310 and are distributed at intervals in the first direction. The plurality of spacer pieces 170 protrude relative to the side wall edge of the cooling body 110. Correspondingly, a plurality of grooves (not marked in the figure) are arranged at intervals in the first direction on the bottom wall of the battery box 310, and the grooves are used to accommodate the spacer pieces 170. In this way, on the one hand, the cooperation between the grooves and the spacer pieces 170 can play a positioning role in the installation of the cooling body 110, facilitating the rapid assembly of the cooling body 110; on the other hand, the spacer pieces 170 can be used to isolate adjacent groups of battery modules 320, avoiding the adjacent battery modules 320 from coming into contact and collision with each other, and at the same time avoiding the high-temperature gas from affecting the adjacent battery modules 320.

[0052] As Figure 4 shown, the outer wall of the cooling body 110 is covered with a heat conducting body 116, and the heat conducting body 116 can improve the heat exchange efficiency, thereby improving the cooling efficiency of the cooling body 110 for the battery module 320.

[0053] In one embodiment, the heat conductor 116 can be selected from heat-conducting silica gel, nylon gaskets, etc.

[0054] As Figure 4 and Figure 6 shown, two second partition members 130 are connected to one end of the first partition member 120 along the second direction. The ends of the two second partition members 130 away from the first partition member 120 are angled and connected to the inner top wall of the cooling body 110. In this way, the aforementioned first exhaust passage 111 can be formed between the two second partition members 130, the first partition member 120, and the inner top wall of the cooling body 110.

[0055] It should be noted that the two second partition members 130 are angled to form a fork-shaped weakening structure. That is, the two second partition members 130 can deform when the battery module 320 expands in volume, and avoid squeezing the battery module 320 by making room in the thickness direction of the battery module 320. That is to say, for the same cooling component 100, when the battery modules 320 on both sides expand in volume, any battery module 320 on both sides applies pressure to the cooling body 110. The cooling body 110 squeezes one or both of the second partition members 130, and one or both of the second partition members 130 can move relatively closer to provide a clearance space to meet the thickness change requirements of the battery modules 320 on both sides.

[0056] In one embodiment, the two second partition members 130 are angled at an acute angle, which makes it easier for them to deform and avoid the cooling body 110 exerting a large squeezing force on the battery module 320 when the battery module 320 expands. Optionally, the included angle between the two second partition members 130 is in the range of 15° - 45°.

[0057] In one embodiment, the second partition member 130 is an elastic sheet structure. When the volume of the battery module 320 expands, under the pressing action of the side wall of the cooling body 110, the second partition member 130 undergoes elastic deformation to provide a certain clearance space to meet the space requirements when the battery module 320 expands; when the volume of the battery module 320 returns to its initial state, the pressing action of the side wall of the cooling body 110 on the second partition member 130 is cancelled, and the second partition member 130 can be elastically reset. In this way, when the battery module 320 expands in volume next time, the second partition member 130 can also undergo corresponding elastic deformation.

[0058] It should be understood that if the thickness of the second separator 130 is relatively large, then when the battery module 320 expands in volume, the pressing force will not be sufficient to press the second separator 130 to deform; if the thickness of the second separator 130 is relatively small, the second separator 130 is prone to breakage when being pressed. Therefore, it is necessary to limit the thickness of the second separator 130 within a certain range. For example, the thickness of the second separator 130 is within the range of 0.2 mm - 0.5 mm, the thickness of the first separator 120 is 0.7 mm, and the thickness of the second separator 130 is less than that of the first separator 120, which is conducive to achieving elastic deformation.

[0059] As Figure 4 and Figure 6 shown, the cooling assembly 100 may further include a third separator 140. The third separator 140 is disposed within the cooling body 110. The third separator 140 connects one end of the first separator 120 away from the second separator 130 and the inner wall of the cooling body 110. The third separator 140 and the first separator 120 can be used to separate a plurality of cooling channels 112 and the first external environment. The third separator 140 can prevent the cooling medium in the cooling channels 112 from leaking into the first external environment.

[0060] As Figure 4 and Figure 6 shown, the ends of the two third separators 140 away from the first separator 120 are arranged at an angle and connected to the inner side wall of the cooling body 110, and a fork-shaped weakening structure can be formed, which can avoid a certain space in the thickness direction of the battery module 320 when the battery module 320 expands in volume, so as to avoid squeezing the battery module 320. That is, for the same cooling assembly 100, when any battery module 320 on both sides expands in volume, one or two battery modules 320 on both sides apply pressure to the cooling body 110, the cooling body 110 squeezes one or two third separators 140, and one or two third separators 140 can move relatively closer to provide an avoidance space to meet the thickness change requirements of the battery modules 320 on both sides.

[0061] In an embodiment, the two third separators 140 are arranged at an acute angle, and it is easier for them to deform, avoiding the cooling body 110 from generating a large squeezing force on the battery module 320 when the battery module 320 expands. Optionally, the included angle between the two third separators 140 is within the range of 15° - 45°.

[0062] In one embodiment, the third partition member 140 is an elastic sheet structure. When the volume of the battery module 320 expands, under the pressing action of the side wall of the cooling body 110, the third partition member 140 undergoes elastic deformation to provide a certain avoidance space to meet the space requirement of the battery module 320 during expansion; when the volume of the battery module 320 returns to the initial state, the pressing action of the side wall of the cooling body 110 on the third partition member 140 is cancelled, and the third partition member 140 can achieve elastic reset. In this way, when the volume of the battery module 320 expands next time, the third partition member 140 can also undergo corresponding elastic deformation.

[0063] It should be understood that if the thickness of the third partition member 140 is relatively large, then when the volume of the battery module 320 expands, the pressing force will not be sufficient to press the third partition member 140 to deform; if the thickness of the third partition member 140 is relatively small, the third partition member 140 is prone to breakage when being pressed. Therefore, it is necessary to limit the thickness of the third partition member 140 within a certain range. For example, the thickness of the third partition member 140 is in the range of 0.2 mm - 0.5 mm, the thickness of the first partition member 120 is 0.7 mm, and the thickness of the third partition member 140 is less than that of the first partition member 120, which is beneficial to achieving elastic deformation.

[0064] As Figure 5 and Figure 6 shown, the first partition member 120 is provided with a plurality of second exhaust channels 121 spaced apart along the first direction, and the plurality of second exhaust channels 121 are all communicated with the first exhaust channel 111. It should be understood that a through-hole structure is formed on the first partition member 120 to form the second exhaust channels 121. The second exhaust channels 121 correspond to the first exhaust channel 111, and the high-temperature gas accumulated at the bottom of the battery box 310 can be transported from the plurality of second exhaust channels 121 into the first exhaust channel 111. In this way, the exhaust efficiency of the high-temperature gas can be effectively improved.

[0065] As Figure 5As shown, at one end of the cooling body 110 away from the first exhaust passage 111, a plurality of blocking blocks 160 are provided at intervals in the first direction. The blocking blocks 160 can divide the aforementioned first external environment into a plurality of sub-spaces 150, and each sub-space 150 corresponds to at least one second exhaust passage 121. The blocking blocks 160 are triangular in shape and are respectively connected to two third partition members 140 to form a plurality of isolated sub-spaces 150 in the first direction. It should be understood that the blocking blocks 160 can prevent high-temperature gases from diffusing into each other in different sub-spaces 150. That is to say, when high-temperature gases gather at a position corresponding to one of the sub-spaces 150, the high-temperature gases at that place can be discharged into the first exhaust passage 111 through the second exhaust passage 121 corresponding to that sub-space 150 and finally discharged, without diffusing into other sub-spaces 150, avoiding affecting other parts of the battery module 320. At the same time, the blocking blocks 160 can also improve the strength of the third partition members 140, preventing the third partition members 140 from being damaged due to the expansion and extrusion of the battery module.

[0066] In one embodiment, the number of second exhaust passages 121 corresponding to the same sub-space 150 can be one, two, three, etc.

[0067] It should be understood that the distance between adjacent blocking blocks 160 can be set according to actual conditions, and the present application does not make specific limitations.

[0068] Figure 7 It is a schematic structural diagram of the current collector provided by an exemplary embodiment of the present application from the first perspective. Figure 8 It is a schematic structural diagram of the current collector provided by an exemplary embodiment of the present application from the second perspective. As Figure 7 and Figure 8 shown, the cooling assembly 100 may further include a current collector 114. The current collector 114 is provided with a limiting groove 115. The end of the cooling body 110 in the first direction is clamped in the limiting groove 115. The cooling body 110 and the current collector 114 are detachably connected through the limiting groove 115, which is convenient for installation and maintenance.

[0069] As Figure 7 and Figure 8As shown, the limiting groove 115 is divided into a cooling cavity 1151 and an exhaust cavity 1152. For the cooling cavity 1151, the cooling cavity 1151 is correspondingly communicated with the cooling channel 112. The external cooling medium can enter the cooling channel 112 through the cooling cavity 1151 to achieve the effect of cooling the battery module 320. In practical applications, different current collectors 114 are respectively connected to both ends of the cooling body 110. The cooling medium enters from the cooling cavity 1151 of one current collector 114, then flows through the cooling channel 112, and then flows out from the cooling cavity 1151 of the other current collector 114. After being cooled by external equipment, it enters the cooling channel 112 through the cooling cavity 1151 of the previously inflowing current collector 114 to achieve circular flow, so as to continuously cool the battery module 320.

[0070] For the aforementioned exhaust cavity 1152, the exhaust cavity 1152 is correspondingly communicated with the first exhaust channel 111. An air outlet 1141 is provided at one end of the current collector 114 away from the cooling body 110. The air outlet 1141, the exhaust cavity 1152 and the first exhaust channel 111 penetrate along the first direction. In this way, the high-temperature gas flowing in the first exhaust channel 111 can flow into the exhaust cavity 1152 and then be discharged from the air outlet 1141. In practical applications, different current collectors 114 are respectively connected to both ends of the cooling body 110. Different parts of the high-temperature gas in the first exhaust channel 111 can flow towards different exhaust cavities 1152 and be discharged from the corresponding air outlets 1141. In this way, the discharge efficiency of the high-temperature gas can be effectively improved. In other embodiments, the cooling body 110 can also be provided with an air outlet 1141 at only one end to simplify the overall structure and improve the energy density.

[0071] The basic principle of the present application has been described above in combination with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purposes of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0072] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any way. Words such as "including," "comprising," "having," etc. are open-ended terms that mean "including but not limited to" and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.

[0073] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.

[0074] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0075] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although several example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions, and sub-combinations thereof.

Claims

1. A cooling component, characterized in that, Comprising: A cooling body (110), within which there are provided a first exhaust passage (111) extending along a first direction and multiple cooling passages (112) that are independent of each other; A first partition member (120), which is disposed within the cooling body (110) and is used to partition the multiple cooling passages (112). The first partition member (120) is provided with a second exhaust passage (121) penetrating along a second direction, and the second exhaust passage (121) communicates with the first exhaust passage (111) and a first external environment; A second partition member (130), which is disposed within the cooling body (110), and the second partition member (130) connects the first partition member (120) and the inner wall of the cooling body (110). The second partition member (130) is used to partition the first exhaust passage (111) and the multiple cooling passages (112); One end of the first exhaust passage (111) along the first direction is provided with an exhaust through-hole (1111) to communicate with a second external environment. The first direction is the extending direction of the cooling body (110), and the second direction is perpendicular to the first direction.

2. The cooling component according to claim 1, wherein One end of the first partition member (120) along the second direction is connected to two of the second partition members (130). The ends of the two second partition members (130) far from the first partition member (120) are arranged at an angle and are connected to the inner top wall of the cooling body (110), so as to form the first exhaust passage (111) through the two second partition members (130), the first partition member (120), and the inner top wall of the cooling body (110).

3. The cooling assembly according to claim 2, wherein The second partition member (130) is of an elastic sheet structure.

4. The cooling assembly according to claim 2, wherein, The cooling assembly further includes: A third partition member (140), which is disposed within the cooling body (110). The third partition member (140) connects one end of the first partition member (120) far from the second partition member (130) and the inner wall of the cooling body (110). The third partition member (140) and the first partition member (120) are used to partition the multiple cooling passages (112) and the first external environment.

5. The cooling assembly according to claim 4, wherein, The ends of the two third partition members (140) far from the first partition member (120) are arranged at an angle and are connected to the inner side wall of the cooling body (110). Among them, the third partition member (140) is of an elastic sheet structure.

6. The cooling assembly according to any one of claims 1 to 5, characterized in that, The first partition member (120) is provided with multiple second exhaust passages (121) spaced apart along the first direction, and the multiple second exhaust passages (121) are all communicated with the first exhaust passage (111).

7. The cooling component according to claim 6, characterized in that, One end of the cooling body (110) far from the first exhaust passage (111) is provided with multiple plugging blocks (160) spaced apart along the first direction. The plugging blocks (160) are used to partition the first external environment into multiple sub-spaces (150), and each sub-space (150) corresponds to at least one of the second exhaust passages (121).

8. The cooling assembly according to any one of claims 1 to 5, characterized in that, The cooling assembly further includes: The current collector (114) is provided with a limiting groove (115), and the end of the cooling body (110) along the first direction is clamped in the limiting groove (115). Wherein, the limiting groove (115) is divided into a cooling cavity (1151) and an exhaust cavity (1152). The cooling cavity (1151) is correspondingly communicated with the cooling channel (112), and the exhaust cavity (1152) is correspondingly communicated with the first exhaust channel (111). An air outlet (1141) is arranged at one end of the current collector (114) away from the cooling body (110), and the air outlet (1141), the exhaust cavity (1152) and the first exhaust channel (111) penetrate along the first direction.

9. A battery pack, characterized in that, Comprising: A battery box (310); Multiple groups of battery modules (320), arranged in the battery box (310); Multiple cooling components as described in any one of claims 1 to 8, arranged in the battery box (310). The cooling components are attached between any two adjacent groups of battery modules (320). The first external environment corresponds to the bottom wall of the battery box (310), and the second external environment corresponds to the side wall of the battery box (310).

10. The battery pack according to claim 9, characterized in that, A plurality of spacer plates (170) spaced along the first direction are provided at one end of the cooling body (110) close to the bottom wall of the battery box (310), and the plurality of spacer plates (170) protrude relative to the side wall edge of the cooling body (110). A plurality of grooves are arranged at intervals along the first direction on the bottom wall of the battery box (310), and the grooves are used to accommodate the spacer plates (170) to isolate two adjacent groups of battery modules (320).

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